75564505 has 8 divisors (see below), whose sum is σ = 90744192. Its totient is φ = 60407088.

The previous prime is 75564487. The next prime is 75564509. The reversal of 75564505 is 50546557.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75564505 - 2¹⁵ = 75531737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75564509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3142 + ... + 12688.

It is an arithmetic number, because the mean of its divisors is an integer number (11343024).

Almost surely, 2^75564505 is an apocalyptic number.

It is an amenable number.

75564505 is a deficient number, since it is larger than the sum of its proper divisors (15179687).

75564505 is a wasteful number, since it uses less digits than its factorization.

75564505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11135.

The product of its (nonzero) digits is 105000, while the sum is 37.

The square root of 75564505 is about 8692.7846516522. The cubic root of 75564505 is about 422.7717379379.

The spelling of 75564505 in words is "seventy-five million, five hundred sixty-four thousand, five hundred five".